Sakr, S. A. (1971). Development Alternatives in Egypt in 1974/75. The Institute of National Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSakr, Sakr Ahmed. Development Alternatives in Egypt in 1974/75. Cairo: The Institute of National Planning, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSakr, Sakr Ahmed. Development Alternatives in Egypt in 1974/75. The Institute of National Planning, 1971.
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